City University of Hong Kong

Invited Speaker


Bin Liu received his B.Eng. (1st Class Honors) and M.Eng. degrees in Chemical Engineering from the National University of Singapore and obtained his Ph.D. degree in Chemical Engineering from University of Minnesota in 2011. Thereafter, he moved to University of California, Berkeley and worked as a postdoctoral researcher in Department of Chemistry during 2011–2012 before joining School of Chemical and Biomedical Engineering at Nanyang Technological University as an assistant professor in 2012. He was promoted to associate professor in 2017. In February 2023, he moved to Hong Kong, and now he is a professor at the Department of Materials Science and Engineering in City University of Hong Kong. His main research interests include electrocatalysis, photoelectrochemistry, and in situ/operando characterization. 

Electrochemical CO2 Reduction Chemistry over Model Single-Atom Catalyst


Department of Materials Science and Engineering, City University of Hong Kong


Noble-metal and transition-metal based materials have been demonstrated as promising catalysts for selective electrochemical CO2 reduction reaction (CO2RR), however, neither the detailed structures of catalytic intermediates nor the key surface species have been unambiguously identified. In this talk, I am going to present a series of single transition-metal atom catalysts with well-defined structures as model systems to explore the electrochemical CO2RR chemistry (Figure 1). Employing a combination of operando X-ray absorption spectroscopy, attenuated total reflectance surface enhanced infrared absorption spectroscopy, Raman spectroscopy and Mössbauer spectroscopy, we successfully captured the dynamic evolution of the catalytic centers during the CO2RR process.

Figure 1: Electrochemical CO2 reduction over a model single-atom catalyst.








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